>> yeah. >> robin likes us. i came into it because my faith, my belief, kind of pushed me that direction. but in retrospect i would go all the way back saying i'd do it for love. because this is something that's come together out of love. >> aww! >> aw, shucks. >> so sweet. >> reporter: mary, janelle, and christine all live in one big house with their kids. robin, the newest wife, lives in a smaller house nearby. in all, there are 16 kids. >> she's a sister from the same mister, and he's a brother from another mother. >> somebody referred to us as polyg-lets. >> that's how most of us are known is plygs, polygamists. >> reporter: whether you think the browns' lifestyle is right or wrong, it is undeniably challenging. there's the challenge of supporting a huge family on just three incomes. cody and two of the wives work. and then there are the interpersonal logistics. cody sleeps in a different wife's bed every night. you must at times feel torn in four different directions. >> once in a while i give a piece of my